Hook



FIG. 1 is a perspective view of a hook according to the present invention;

FIG. 2 is a front view thereof;

FIG. 3 is a right side view of thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a hook, as shown and described. 